11th Class Computer Science Chapter 1 Basics of Information Technology Short Questions Answers
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Here we are providing complete chapter wise Computer Science questions and Answers for the 11th class students. All the visitors can prepare for their 11th class examination by attempting below given question answers.
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Lahore Board 11th classes short questions Answer
Rawalpindi Board 11th classes short questions Answer
Gujranwala Board 11th classes short questions Answer
Multan Board 11th classes short questions Answer
Sargodha Board 11th classes short questions Answer
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Sahiwal Board 11th classes short questions Answer
DG Khan Board 11th classes short questions Answer
Bahwalpur Board 11th classes short questions Answer
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Converting raw form of data into meaningful information is called data processing. Computer machines are used as data processor.
The software which is used to solve different problems of the user is called application software. They are specially developed to perform a specific task.
Plotters are the printers which are used to output the high quality graphics and normally are used in printing of drawings, maps, circuit diagrams. The engineering fields like civil, mechanical and electronics are using these printers very efficiently. There are two types of plotters i.e. flatbed plotter and drum plotters.
The parts of computer which are used to feed data into computer system are known as input devices Keyboard, Mouse, Scanner and Mic are the input devices.
Computer is an electronic device. Operating under the control of instructions, it can accepts data as in input, processes the data according to predefined rules, produces results and stores the results for future use.
QWERTY is a standard type of keyboard which is used with PC computer and laptops. This keyboard has 103 key in standard and the first six keys of top row of this keyboard is QWERTY so it is called QWERTY keyboard.
There are two major types of printer.
- Impact printer
- Non-impact printer
The peripheral devices which are used to return the output are called output devices. Printer, plotters, projectors, monitors screen and speakers are commonly used out-put devices.
In laptops and notebooks a little pad is placed under the keypad, this pad is pressure sensitive with touch technology. When user presses figure on the surface of pad, the pointer on the screen moves.
The software which specially designed to control the system, hardware and to manage the application software is called system software. Operating system, utility software, language translators and device drivers are the examples of system software.
All the physical parts of computer are called hardware. These are manufactured by physical materials. They have some weight, occupy some space and can be touched.
Animation is appearance of series of text, images and other drawing objects which are arranged in a sequence and create motion and the objects look like moving object.
An operating system is a set of programs that work together to coordinate all the activities among computer hardware resources. Most operating systems perform similar functions that include starting and shutting down a computer, providing a user interface, managing programs, managing memory, coordinating tasks, configuring devices and establishing an internet connection.
Data is raw, unorganized facts that need to be processed. Data can be something simple and seemingly random and useless until it is organized. In statistics we define data as “Data is the collection of raw facts and figures about any object”.
Information technology is a technology that is involving in processing data and distribution of information using networks. This technology is concerned with developed, maintenance and use of computer systems, software and networks.
A non-impact printer uses the printing technique other than striking or punching the paper. Some of the non-impact printers spray ink, while others use heat or pressure to create images.
System Development Life Cycle is process of developing system through a multi-step process from investigation of initial requirements through analysis, design, implementation and maintenance.
- Preliminary Investigation
- Feasibility study
- System analysis
- System designing
- Development of software
- System testing
- Implementation
- Maintenance
The web cam or digital camera is a camera device which enable the user to record videos or still pictures in the computer. This device is broadly used for video communication.
These devices are used to input the physical or behavioral characteristics of a person in the computer. These devices can scan fingerprints, hand geometry, facial features, voice, signatures, and eye patterns.
The ATM is abbreviation of Automated Teller Machine, It works like a cashier in a bank and it is operated through an ATM card. ATM card is used to get cash, transfer funds, get balance statement and get prepaid cards for mobile phones.
The hardware is all the physical parts of the computer and software are the non-physical parts, so hardware exits physically but software does not exists physically. Hardware are made of physical materials but software are made of instructions.
Data is a collection of raw facts and figures about an object and when data is processed it becomes information. Data is normally huge in volume but information is less in volume. Data is unorganized and information is organized form of data.
Display screen is an output device used to show the output from computer. Monitor & LCD are most popularly used display screens.
The resolution of a printer is measure in DPI (dot per inch) mean how much dots a printer print in one inch. The magnetized ink is very much in exercise to print special words on sensitive documents.
